http://apod.nasa.gov/apod/
I chose the APOD blog "Bright Points on the Quiet Sun", a photo taken by J. Sanchez Almeida. It's a high resolution photo which captures a patch of granules which are hot due to convection. You can notice rising columns of plasma, as described, which are surrounded by dark lanes of a cooler descending plasma. Although the bright points in the photo are not related to sunspots, they are sections of concentrated magnetic fields and the luminosity is caused by themagnetic pressure that opens the window to the deeper layers below the photosphere. This photo was actually recorded in 2007.
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